Reverse Engineering
Hand us your software and we take it apart. Your SaaS, desktop or mobile app, a binary, a device firmware, we dissect it to understand how it truly works, then make it do what it was never meant to: bypass protections, break assumptions and reveal what is hidden inside.
In plain terms
See your product the way a skilled attacker will
Every application you ship carries assumptions: that the client cannot be modified, that a licence check cannot be skipped, that a secret in the code will stay secret, that a user can only ever do what the interface allows. A capable attacker does not accept those assumptions, they take the software apart and test every one. Reverse engineering is how we do the same, on purpose and on your side, before someone else does it against you.
This is a specialised discipline and a genuine differentiator: most security firms stop at the network and the web front end. We go deeper, into the compiled code itself. If your business depends on protecting intellectual property, enforcing licensing, or trusting a client application or connected device, this is how you find out whether that trust actually holds.
It is worth being clear about what makes this different from a normal application test. A web pentest looks at your software as a user pokes at it from the outside. Reverse engineering opens the box: we read the actual compiled code, the same code sitting on your customers' phones and computers, and work out what it really does, what secrets it carries, and which of its rules can be quietly switched off. If your product's security depends on the client behaving, this is the only way to know whether that dependency is safe.
Scope & coverage
What we take apart
Web, SaaS & thick-client applications
We probe the parts of your product that run on the user's side, where server-side rules are often wrongly assumed to be enforced.
- Client-side logic and hidden functionality
- Bypassing controls the server should enforce
- Exposed endpoints, secrets and debug features
- Tampering with requests, state and workflows
Mobile app reverse engineering
Android and iOS apps are shipped straight to attackers. We unpack them to see what they reveal and what they trust.
- Decompilation and static analysis of the app
- Hard-coded keys, tokens and API secrets
- Certificate pinning and root/jailbreak bypass
- Runtime instrumentation and traffic manipulation
Binary & firmware analysis
Compiled software and device firmware, disassembled and understood, including the parts you may have inherited from third parties.
- Disassembly and decompilation of native binaries
- Firmware extraction and analysis
- Memory-corruption and logic vulnerabilities
- Undocumented commands and backdoors
Licensing, DRM & anti-tamper bypass
If your revenue depends on a check that runs on someone else's machine, we test whether that check can simply be removed.
- Licence and activation-check bypass
- Feature-flag and paywall circumvention
- Anti-tamper and integrity-protection review
- Advice on protections that actually slow attackers down
Protocol & API analysis
We reverse the way your software talks, to find what it exposes and what it will accept from a hostile client.
- Custom and undocumented protocol analysis
- Replay, tampering and forged-client attacks
- Hidden or privileged API operations
- Data leakage in transit and at rest
Client-side control bypass
The heart of it: making the software do exactly what it should not, so you can fix the assumption before an attacker exploits it.
- Privilege and role bypass from the client
- Unlocking restricted or hidden functionality
- Forging trusted state and identifiers
- Turning findings into concrete, prioritised fixes
The value
What you gain
Protection for your product & IP
Know whether your licensing, client controls and intellectual property genuinely hold up against a determined, skilled attacker.
Insight no scanner can give
Automated tools do not read compiled code the way a human reverse engineer does. This is manual, expert work that finds what others miss.
A capability partner
Deep reverse-engineering skill is rare. Having it on call means the hard questions about your software finally have an honest answer.
Methodology
How we work
Scope & goals
We agree the target, what 'breaking it' means for you, and written authorisation to analyse and test it.
Static analysis
We disassemble and decompile the software, mapping its logic, secrets, protections and trust boundaries.
Dynamic analysis
We run and instrument it, hooking and manipulating it at runtime to prove what can actually be bypassed.
Report & harden
We show exactly what we broke, with evidence, and give practical guidance to make it meaningfully harder next time.
For the technical reader
Under the hood
We combine static and dynamic analysis. Statically, we disassemble and decompile the target to reconstruct its logic, locate secrets and understand its protections. Dynamically, we run it under instrumentation, hooking functions, intercepting traffic and manipulating state at runtime, so a theory about a weakness becomes a working bypass you can see for yourself.
Reverse engineering matters because so much security quietly depends on the client behaving. A licence check, a role restriction, a hidden feature, a pinned certificate: each is only as strong as the assumption that the code running on the user's device cannot be changed. We test that assumption directly, and where it fails we do not just prove it, we advise on the protections, from server-side enforcement to anti-tamper measures, that genuinely raise the cost for the next attacker.
Every engagement is fully authorised and completely confidential. Your source, binaries and findings stay with us and are handled as the sensitive intellectual property they are.
A typical engagement moves between two modes. Static analysis reconstructs the program without running it, disassembly, decompilation, string and secret extraction, mapping the logic and its protections. Dynamic analysis then runs the target under a debugger or an instrumentation framework, hooking functions, intercepting network calls, and rewriting values in memory to prove that a control can be bypassed in practice, not just in theory. The two feed each other: static analysis tells us where to push, dynamic analysis confirms what actually gives way.
Deliverables
What you receive
Executive summary
A plain-language account of what could be bypassed or extracted, and what it means for your product and revenue.
Findings with proof
Each weakness demonstrated with a working proof of concept, so the impact is concrete and undeniable.
Risk-rated issues
Every finding rated by severity and effort, so you know which assumptions to shore up first.
Hardening guidance
Practical advice on server-side enforcement, obfuscation and anti-tamper that actually slows real attackers.
Technical walkthrough
A clear account of how we took the software apart, useful for your own developers and future reviews.
Retest of key fixes
Confirmation that the protections you added genuinely close the gaps we found.
Who it's for
When reverse engineering is the right call
Rare skill, real specialisation
Reverse engineering is where offensive security gets genuinely hard, and most firms simply do not offer it. It is also the natural partner to our red team work, where a bespoke bypass of your own software can be the key that unlocks a wider objective.
Questions & answers
Reverse engineering: questions and answers
Do you need our source code?
No. We work from the compiled application, binary, or firmware, exactly what an attacker would have. Source code is not required, though if you choose to share it, it can speed up the work and deepen the coverage.
Can you really bypass our licensing or protections?
Very often, yes, because so many protections ultimately run on the user's device where they can be modified. We show you precisely how a control can be defeated, with a working proof of concept, and then advise on the server-side and anti-tamper measures that make it meaningfully harder.
Is our software and intellectual property safe with you?
Yes. Every engagement is fully authorised and completely confidential, covered by an NDA. Your binaries, any source you share, and all findings are treated as the sensitive intellectual property they are and never leave our control.
What kinds of software can you analyse?
Web and SaaS front ends, thick-client desktop applications, Android and iOS mobile apps, native binaries, and device firmware. If it runs code, we can usually take it apart and tell you where it breaks.
How is this different from a normal penetration test?
A penetration test probes your software from the outside as a user would. Reverse engineering goes inside the compiled code itself to defeat assumptions the outside view cannot reach, such as licence checks, client-side restrictions, and hidden functionality.
What do we receive at the end?
A clear report with an executive summary, each weakness demonstrated with a proof of concept, risk ratings, practical hardening guidance, and a retest to confirm the protections you add actually close the gaps.
